Oil Change Interval F150 vs Nissan Rogue
11-27-2018, 06:40 AM
#41
11-27-2018, 08:03 AM
#42
I believe it has happened with fuel dilution. I guess with the fuel dilution one needs to decide if they will either make necessary repairs to correct or change the oil more frequently. If I had a fuel dilution Issue I'd be fixing it rather than using it as substantiation for shorter oil change intervals.
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Ricktwuhk (11-27-2018)
11-27-2018, 08:10 AM
#43
ALL OLM systems are baselined on what factory fill for the engine is. Or the recommended fill. In the case of a Ford products it's been tested with whatever current motorcraft base is. In the case of GM's it's the current DEXOS fill. Yes even vette engine is baselined with Dexos but filled with M1. Mercedes uses whatever their system is and I believe they use castrol. Etc Etc..
I still get a kick out of how guys on the internet will consider how many years as a certified shop monkey, or how many cars owned in the past as more relevant substantiation than a laboratory test. These are the same certified Ford shop monkeys that say they need my truck a few days to properly troubleshoot the moisture in my headlights.
11-27-2018, 08:24 AM
#44
I have a question related to this. Has anyone ever had warranty work denied (or any work done) and mechanics come back and said cause was due to infreqent oil changes? Anyne had this experience or ever known anyone go through this? I haven't. Just curious but could be a small point to help people worry a tad bit less.
11-27-2018, 08:53 AM
#45
Senior Member
Thread Starter
11-27-2018, 09:12 AM
#46
Although not a Ford or a Nissan, This a good read on the subject when it went to court
https://www.courthousenews.com/wp-co...04/Hyundai.pdf
https://www.courthousenews.com/wp-co...04/Hyundai.pdf
11-27-2018, 09:32 AM
#47
Lots of misinformation here from people who want to save a few bucks doing 10k oil changes. Fuel dilution is a real issue in these engines with direct injection, then in the ecoboosts case, lots of blow by and oil cooled turbos. They are very hard on the oil, and by 10k that oil is jet black and dirty as heck. It’s NOT good for your engine no matter what. Changing your oil more often will result in less engine wear and a cleaner engine. Let’s put it this way 5,000 mile oil changes are BETTER than 10k mile oil changes in every conceivable way for your engine. Period. Battle you can’t win. Lastly Fords recommended interval on semi synthetic and the standard filter isn’t a good interval to follow.
11-27-2018, 09:42 AM
#48
Senior Member
I do my oil changes when the OLM hits about 50% because I plan to keep it a long time and see enough engine problems so I believe it is money well spent, what I was interested in is why Nissan have theirs so much shorter. I‘m not as confident in the computer as some are, I was driving in the mountains this year and watching the mileage graph, the trans was in 6th gear so I dropped 6th and made it go into 5th and the mileage went up by looking at the graph so if it doesn’t know to shift down for the best mileage they may still have a little work left to do on the programming.
Fun fact - set your oil life to 50% when you change your oil, and then the truck will tell you when you're at your desired point instead of tracking mileage...
11-27-2018, 09:49 AM
#49
Senior Member
And one of the points I was making was, that even going by the manufacturers recommended OCI can still leave you with engine damage and even though you are doing so and even having the dealer do the oil changes may have them invalidate your warranty stating that you failed to properly maintain your engine, even though the same dealer that performs said services is the same dealership that won't cover your engine under warranty.
11-27-2018, 12:28 PM
#50
Senior Member
For my truck with the 5.0 I figured full synthetic and 10K mile changes would be OK. But, my truck starts idling rough around 7500 miles on the oil. Dealer says for the 5.0 the cam phasers really need the clean oil and that for me, I should change more often then what the oil life monitor says. Well, didn't hear this advice until 60K miles so pretty sure I've accelerated the age of my engine with 10K oil changes, just based on my truck's symptoms. Pretty bummed about it.
